Regardless of the Adaptive Cruise Control (ART) function, Active Brake Assist 4
(ABA 4) warns the driver prior to a collision with an obstacle and independently brakes the coach. To this end, the radar-controlled system constantly scans an area of up to 250 metres of the lane in front of the coach.
As the world’s first system of its kind, ABA 4 also reacts to pedestrians. Therefore, in addition to moving vehicles and stationary obstacles ahead (e.g. the tail-end of a traffic jam), the system also detects pedestrians within 80 metres. For example, should the distance to pedestrians be dangerously reduced, the system alerts the driver by means of visual and acoustic warning signals, while initiating partial braking through to a standstill if the driver does not respond. The partial braking provides the driver with the possibility of avoiding the collision by means of a full braking or steering maneuver. Additionally, he can warn endangered pedestrians in time using the vehicle’s horn.